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Finding the Fourth Proportional to 156,995.85, 216,578.10 and 93,288.54

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Solution

The fourth proportional to 156,995.85, 216,578.10 and 93,288.54 is: 128,692.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,995.85 : 216,578.10 = 93,288.54 : x
  2. Step 2: Convert to fraction form
    156,995.85/216,578.10 = 93,288.54/x
  3. Step 3: Cross multiply
    156,995.85x = 216,578.10 × 93,288.54
  4. Step 4: Simplify right side
    156,995.85x = 20,204,254,744.97
  5. Step 5: Solve for x
    x = 20,204,254,744.97/156,995.85
  6. Step 6: Final answer
    x = 128,692.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.